1. Plant Production Systems GroupWageningen UniversityWageningenThe Netherlands
2. The Fletcher SchoolTufts UniversityMedfordMAUSA
3. School of Agriculture and EnvironmentUniversity of Western AustraliaPerthWestern AustraliaAustralia
4. Environmental Studies ProgramUniversity of Colorado‐BoulderBoulderCOUSA
5. Department of Plant and Environmental SciencesUniversity of CopenhagenKøbenhavnDenmark